It is the Rome's cathedral, founded by Constantine
in the IV century. It was destroyed and reconstructed
more times. The basilica's actual shape dates
back to the XII century
In the course of centuries, several pontifices
added spaces, decorations and works of art.
An interior restoration was made by Borromini,
according to Innocenzo X's will, on the Jubilee
occasion in 1650. The basilica's imposing façade,
made out of travertine, overlooks "Piazza
di Porta San Giovanni" and was constructed
in 1735 by Alessandro Galilei, a famous architect.
Pio IX and Leone XIII had reconstruction and
restoration works executed in its presbytery
and apse by Virginio Vespignani.
